一种二氧化碳和温度可切换的“精神分裂症型”嵌段共聚物：从囊泡到胶束
A CO₂- and temperature-switchable "schizophrenic" block copolymer: from vesicles to micelles.
作者信息
Feng Anchao, Zhan Chengbo, Yan Qiang, Liu Bowen, Yuan Jinying
机构信息
Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China.
出版信息
Chem Commun (Camb). 2014 Aug 18;50(64):8958-61. doi: 10.1039/c4cc03156c.
CO2-responsiveness is imported into amphiphilic block copolymers, poly[(N,N-diethylaminoethyl methacrylate)-b-(N-isopropylacrylamide)] (PDEAEMA-b-PNIPAM), and a system dual-responsive to CO2 and temperature is constructed. The copolymer self-assembles in aqueous solution, and undergoes phase transition when CO2 and temperature stimuli occur, since the stimuli give rise to the conversion of the hydrophilicity of both blocks. Combining CO2 and temperature as triggers, schizophrenic micelle to vesicle morphological transition of the polymer assemblies is controlled.
将二氧化碳响应性引入两亲性嵌段共聚物聚[（甲基丙烯酸N，N - 二乙氨基乙酯）-b-（N - 异丙基丙烯酰胺）]（PDEAEMA-b-PNIPAM）中，构建了一种对二氧化碳和温度双重响应的体系。该共聚物在水溶液中自组装，并且当二氧化碳和温度刺激发生时会发生相变，因为这些刺激会导致两个嵌段亲水性的转变。将二氧化碳和温度作为触发因素，可以控制聚合物组装体从分裂的胶束到囊泡的形态转变。
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